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View Diary: Updated: Greenland Heat, Melting & Darkening Stuns Scientists as Ice Goes Into Death Spiral (208 comments)

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  •  melting events of this type occur about once every (0+ / 0-)

    150 years.

    no, I'm not a denialist troll.  I just thought it was quite interesting that this does in fact seem to have a cyclical component to it.

    this is from the press release at space weather.

    here's the context:

    "Ice cores from Summit show that melting events of this type occur about once every 150 years on average. With the last one happening in 1889, this event is right on time," says Lora Koenig, a Goddard glaciologist and a member of the research team analyzing the satellite data. "But if we continue to observe melting events like this in upcoming years, it will be worrisome."
    nasa presser

    While this is all very interesting academically, I will not bet against future, more common, melting events - that's for sure !

    big badda boom : GRB 080913

    by squarewheel on Tue Jul 24, 2012 at 07:53:43 PM PDT

    •  From the conversation above: (2+ / 0-)
      Recommended by:
      burnt out, squarewheel
      I included the information about 1889 temps.
      but that statement is nonsense. That's why I snipped it out. I studied earthquakes for my doctoral dissertation. I've been studying weather patterns since I was a little kid. The notion that complex processes like extreme melting events or earthquakes occur on schedule is not supported by scientific evidence.

      Follow the link to Jason Box's blog. Look at the reflectivity graphs. Greenland has been darkening pretty steadily over a period of years. This is not a "one of" event. This event is a spike in a long term trend of increasing warming, melting and darkening.

      In 2007 there was a catastrophic increase in sea ice melting. Since 2007 thick multi year sea ice has  disappeared in the Arctic except for a small area north of Canada and Greenland. Since 2007 sea ice volume has been in precipitous decline.

      The decline in sea ice volume has darkened and warmed the Arctic ocean.

      The whole damn Arctic is in a warming, melting darkening feed back loop that's scary as hell.

      look for my eSci diary series Thursday evening.

      by FishOutofWater on Tue Jul 24, 2012 at 07:27:04 PM CDT

      The labor of a human being is not a commodity or article of commerce. Clayton Act, Section 6.

      by Ignacio Magaloni on Tue Jul 24, 2012 at 09:05:26 PM PDT

      [ Parent ]

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